Electric massage-machine.



No. 698,022. .Patented Apr. 22. |902.

E, B. JAcossoN.

aLl-:c'rnlc MASSAGE MACHINE.

(Application med sept. 12, 18995) (No Model.) 2 Sheets-Sheet l.

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v Patented Apr. 22, |902. E. B. JACOBSON.

ELECTRIC MASSAGE MACHINE.

(Application med sept. 12, 1899.)

2 sheets-sheet 2,

UNrrnD 'Stains EDWARD B. .IAOOBSON, OF BOSTON, MASSACHUSETTS, ASSIGNOR,BY MESNE ASSIGNMENTS, TO THOR H. NEILSEN, OI BOSTON, MASSACHUSETTS.

ELECTRIC MASSAGE-MACHINE.

SPECIFICATION forming part of Letters Patent No. 698,022, dated April22, 1902. Application filed September 12, 1899. Serial No. 780,214. (Nomodel.)

To @ZZ whom, t may concern:

Be it known that I, EDWARD B. JACOB- sON, a citizen of the UnitedStates, residing at Boston, in the county of Suffolk and State ofMassachusetts, have invented a certain new and useful Improvement inMassage-Machines and in the Method of Treatment, of which the followingis a specification, reference being had therein to the accompanyingdrawings.

The invention relates to improvements in devices for use in mechanicalmassage or in electromechanical massage.

One object of this invention is to so construct a massage mechanism thatthe manipulating implement can be protected from injury and the impactof the same against the patient limited.

Another object of the invention is to so construct a massage-machinethat the manipulating implement may be mechanically regulated as torapidity and intensity of stroke. Another object of the invention is toso construct an electromechanical vibrator that an electrical dischargeis effected from the vibrator at intervals.

Another object of the invention is to provide a massage instrument witha guardframe adapted to be energized.

Another object of the invention is to so construct a mechanism of thisnature that it shall be simple and effective in operation,

'durable in construction, and adapted to be readily repaired.

The invention consists in an electromechanical vibrator combined with acontroller, whereby the rapidity of the stroke thereof may becontinuously under the control of the operator.

The invention also consists in an electromechanical vibrator combinedwith a reciprocal controller adapted to be actuated by the operator.

The invention also consists in an electromechanical vibrator permanentlyconnected with one arm of an electric circuit.

The invention also consists in an electromechanical vibrator adapted toact as a manipulating implement and a frame for determining the approachof said implement to the part to be manipulated.

The invention also consists in the means for controlling the impact ofthe vibratorarm.

The invention also consists in electromagnetic coils having adjustablecores connected with a guard-frame.

The invention also consists in an electromechanical vibrator having itsarm connected with an electrical circuit combined with a 6o frame inwhich the vibrator-arm Works, the frame being adapted to be magnetized.

The invention also consists in the construction of the electromechanicalvibrator and in its combination with the peculiar guardframe.

The invention still further consists in such other novel features ofconstruction and combination of parts as shall hereinafter be more fullydescribed, and pointed out in the claims. 7o

Figure l represents a perspective vienT of the manipulating instrument,parts of the casing being broken away. Fig. 2 represents a verticalcross-sectional view of portions of the device. Fig. 3 represents avertical sec- 75 tional View of the vibrator mechanism removed from thecase.

Similar characters of reference designate corresponding partsthroughout.

The practical carrying forward of my inven- 8o tion has for itsprincipal object the production of an electromechanism wherebypercussive manipulation of any portion of the body, combined With thesimultaneous subj ection of that portion to the action of an elec- 8 5trical current, may be effected.

In carrying my invention into practice I have produced anelectromechanical device which is useful for many other purposes thanthat under direct consideration. 9o

The improved device comprises the handle 5, to Which the open-endedcasing 6 is secured. The handle is furnished with electrical conductorsA and B and With means, as the sockets a and b, whereby electricconnection may be had with a flexible electric cable leading to anysuitable source of electric energy. The closure for the open end of thecasing 6 consists of the plate 7, adapted to fit such open end and to besecured therein. roo On the inner surface of this plate 7 are the ears 8at the upper portion and the stud 9 at the lower portion, and in thestud 9, electrically insulated therefrom at C, is secured the screw 10,having the contact-point 11, and the frame 12, carrying thebinding-screw 13, to which is secured the end of the conductor B. In theears 8 and electrically insulated therefrom at d is the pivot 14, onwhich is pivoted the block 15 of the armature 16, which has the spring17, adapted to contact with the point 11, and the bent tensionspring 1S,while from the block 15 extends the manipulating implement or arm 19, ofany suitable shape. To the plate 7 is also secured a frame, comprisingthe arms 2O 2O and the plate 21, and to the plate 21 are secured theelectromagnet-coils 22 22 and 23 23, connected in pairs, as shown inFig. 2 of the drawings, and having their poles located adjacent to thearmature 1G. In a bearing in the center of this plate 21 is reeiprocallymounted the controller-rod 24E, which is furnished at its outer end Witha head 25, working in an opening in the end of the casing G, and at itsinner end bearing on the free end of the tension-spring 18.

On the top of the casing G is secured the magnet-frame 26, carrying thetubular electromagnets 27 27 and the screw-sleeve 28. IVorking throughthe tubular coils 27 27 are cores 29 29, of soft iron or other suitablematerial, which are connected at their rear ends by the cross-piece 30and at their forward ends are bent up, as at 31 31, and connectedtogether by the strip 32 to form a guardframe, Within which themanipulating-arm 19 works, the percussive action of that implement beingregulated by the adjustment of the cores 29 2O to limit the approach ofthe implement to the part under treatment, this adj ustmcnt of the cores29 29 and the frame, comprising the arms 31 3l, being effected by meansof the screw 33, rotatably mounted in the cross-piece 30 and engaging inthe screW- sleeve 23, so that the rotation of this screw advances orretract-s the cores and the guardframe with relation tothe manipulatingimplement. The conductor A, passing through the handleinto thecasing6,is connectedwith the binding-post 34 on the plate21. From thencean electrical connection E is made to the wire ot' the spool 23, whichwire is connected with that of the spool 23 and this in turn with thebinding-screw 35 at F. From the post 34 the circuit is also made throughthe conductor Gr to the spool 22, thence back through the spool 22', andat H connects with the post 35. From the binding-screw 35 the connectionI extends to the primary coil 27, which is connected with the coil 27',and this in turn with the block 15 oi' the armature by the conductor J.

When the conductors A and B are connected with any suitable source ofelectricity, as a battery, the current follows the circuits described,energizing the coils 22 22 and 23 23 and attracting the armature 16against the initial tension of the spring 18, the strength eeaoea of themagnetic attraction being finally overcome and a vibratory action beingeffected in the armature and its arm or implement 1f). As often as thespring 17 contacts with the point 11 the circuit is completed throughthe armature; but on the breaking of this circuit there is a tendency toattract an electric discharge from the head of the arm 19 to theenergized guard-arms 31 31, depending on the resistance to the passageof the current, but the more or less positive contact of these membersand the conductivity of the portion under manipulation against whichthese members contact.

The guard-frame, comprising the arms 31 31, is adj usted to be broughtinto contact with the surface of the body to support the main portion ofthe instrument, and particularly the implement 19, in position todetermine the percussive action of the implement against that portion.The instrument, being connected in circuit with the source ofelectricity, is actuated as described, causing the rapid percussiveaction of the implement 19 against the portion of the body undertreatment and at the same time subjecting this portion to the Vivicationof the electric current, the rapidity of vibration of the implement 10being controlled by the controller-arm 24k, by pressure on its button25, to increase ordiminish the tension of the spring 18.

Having thus described my invention, I claim as new and desire to secureby Letters Patent-q 1. A massage instrument comprising anintermittently-acting percussive impact member, and a guard for limitingthe approach 0f said instrument to the body under treatment.

2. A massage instrument comprising a vibrating percussive implement, anda guard for limiting the impact of the same on the object undertreatment.

3. A massage implement comprising an electrically-actuatedimpact-vibrator, and mechanical means continuously under the con-` trolof the operator for governing the vibration thereof.

4:. A massage implement comprising an electrically-actuatedimpact-vibrator connected with an electric circuit, and anelectrically-energized member in proximity to the vibrator.

5. A massage mechanism comprising a casing adapted for convenienthandling, an electromagnetically-actuated vibrator contained within thecasing and having a percussive portion extending outside the casing, anda mechanical controller for said vibrator working through an opening inthe casing.

b. A massage mechanism comprising au electromagnetically-excitedguard-frame,and a percussive implement working in said frame.

7. A massage mechanism comprising an electromagnetically-actuatedVibrator and a pair of electromagnets the cores of which are extended toform a frame for the vibrator.

3. A massage implement comprising tubular electromagnetic coils, coresrcciprocally IOO IIO

mounted therein, means for adjusting the cores longitudinally, and aframe connected with said cores.

9. A massage mechanism comprising a casing, anelectromagnetically-actuated vibrator contained therein and having apercussive arm extending therefrom, electromagnets mounted on thecasing, and a frame, adjustable with relation to the percussive armelectrically connected with said magnets.

10. A massage mechanism comprising a casing, anelectromagnetically-actuated percussive implement mounted therein andhaving a portion extending therefrom', arms mounted for longitudinaladjustment on the casing and carrying a frame which partially embracesthe outer portion of the percussive implement, and means for adjustingthe arms.

11. The combination with the casing 6 having the handle 5 and the openend, of the plate 7 for closing the end and having the ears 8 and thestud 9, the screw 10 secured in the stud 9 and insulated therefrom, thepost 12 on said screw, the block 15 pivotally supported in the ears 8and having the armature 16 furnished with the springs 17 and 18 and thearm 19, the magnet-frame comprising the plate 21 and arms 2O 20, themagnets secured to said plate, and the controller-rod 24 reciprocal in abearing in the plate 21, bearing on the spring 18 and having the button25 working in an opening in the casing.

12. The combination with the casing 6, the frame 26 mounted thereon andprovided with the screw-threaded sleeve 28, and the magnets 27 27 insaid frame, ofthe cores 29 29 reciprocal in said magnets and having thebent-up arms 31 3l connected by the strip 32, the crosspiece 30 securedto the rear ends of the cores 29 29, and the adj usting-screw 33rotatable in said cross-piece and engaging the screwthreaded sleeve 28,as and for the purpose described.

In testimony whereof I affix my signature in presence of two witnesses.

EDWARD B. JACOBSON,

Witnesses:

W. STANLEY CAMPBELL, 1-1. J. MILLER.

